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All results from a given calculation for C3H2N2 (Malononitrile)

using model chemistry: MP2/6-311G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at MP2/6-311G*
 hartrees
Energy at 0K-224.410299
Energy at 298.15K-224.411925
HF Energy-223.682396
Nuclear repulsion energy124.016250
The energy at 298.15K was derived from the energy at 0K and an integrated heat capacity that used the calculated vibrational frequencies.
Vibrational Frequencies calculated at MP2/6-311G*
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
4/u)
Dep P Dep U
1 A1 3108 2953 0.19      
2 A1 2205 2096 1.77      
3 A1 1497 1422 15.00      
4 A1 910 865 5.40      
5 A1 579 550 0.12      
6 A1 144 137 9.51      
7 A2 1278 1215 0.00      
8 A2 355 337 0.00      
9 B1 3159 3002 2.57      
10 B1 955 908 0.27      
11 B1 328 312 0.03      
12 B2 2211 2101 6.39      
13 B2 1367 1299 1.23      
14 B2 997 948 6.14      
15 B2 362 344 0.31      

Unscaled Zero Point Vibrational Energy (zpe) 9726.9 cm-1
Scaled (by 0.9503) Zero Point Vibrational Energy (zpe) 9243.4 cm-1
See section III.C.1 List or set vibrational scaling factors to change the scale factors used here.
See section III.C.2 Calculate a vibrational scaling factor for a given set of molecules to determine the least squares best scaling factor.
Rotational Constants (cm-1) from geometry optimized at MP2/6-311G*
ABC
0.67178 0.09771 0.08668

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/6-311G*

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.852
C2 0.000 1.216 0.030
C3 0.000 -1.216 0.030
H4 0.883 0.000 1.495
H5 -0.883 0.000 1.495
N6 0.000 2.194 -0.604
N7 0.000 -2.194 -0.604

Atom - Atom Distances (Å)
  C1 C2 C3 H4 H5 N6 N7
C11.46731.46731.09301.09302.63322.6332
C21.46732.43172.09882.09881.16613.4685
C31.46732.43172.09882.09883.46851.1661
H41.09302.09882.09881.76663.16283.1628
H51.09302.09882.09881.76663.16283.1628
N62.63321.16613.46853.16283.16284.3882
N72.63323.46851.16613.16283.16284.3882

picture of Malononitrile state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 N6 178.932 C1 C3 N7 178.932
C2 C1 C3 111.918 C2 C1 H4 109.251
C2 C1 H5 109.251 C3 C1 H4 109.251
C3 C1 H5 109.251 H4 C1 H5 107.831
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability